[libcxx-commits] [libcxx] [libcxx] fix mi_mode_test failure with libc++-21 (PR #153969)

[Michał Górny via libcxx-commits]

mgorny wrote:

Well, #153940 is the failure I'm hitting with libc++. It either means that the output does change per platform, or the test isn't covered by buildbots.

https://github.com/llvm/llvm-project/pull/153969